There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

What does this mathematical rebus means ?

People make me, save me, change me, raise me. What am I?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

I cannot talk, but I always reply when spoken to. What am I?